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Time cycles Time cycles signify a 360-degree circular or elliptical rotation, orbit or journey in time typically of an object such as a planet or moon. In the case of the precession of the equinoxes, the cycle is determined by the 360 degree shifting of the equinoctal axis. Time cycles can also refer to larger rotations or orbits such as the time it takes for the Earth to make one complete revolution about the Galactic Center of the Milky Way. ==The Earth's day == The Earth's 360 degree rotation upon its axis in 24 hours is the measure of one day.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Time cycles」の詳細全文を読む
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